Finally we note that experimental testing of these theoretical predictions is within reach. Few-atom systems can be reliably constructed with modern techniques [1]}, [2]}, [3]}, [4]}, [5]}, the quench in s-wave scattering length can be achieved using Feshbach resonance [6]}, [7]}, [8]}, [9]}, and the Ramsey signal can be measured using Ramsey interferometry techniques [10]}. Notable Ref. [11]} measured the particle separation of two harmonically trapped 6Li atoms following a quench in trap geometry rather than s-wave scattering length.
